Condenser



R: N. EHRHART.

CONDENSER.

APPLICATION FILED OCT. 8, 1917.

1,328,828. I Patented Jan. 27, 1920 @mmww A TTORNEYS.

UNITED STATES PATENT ormon.

RAYMOND n. R RHART, or nnenwoon PARK, rEnNsYLvANIa, AssIGNoR To wns'rmenousn ELECTRIC a MANUFAC U ING COMPANY, 11 CORPORATION or PENNSYL-VANIA.

CONDENSER.

22) all whom it mag concern:

Be it known that I, RAYMOND 'N. Erm- HART, a citiaen of the UnitedStates, and a resident of Edgewood Park, in the county of Allegheny andState of Pennsylvania, have made a new and'useful Invention in proved.condenser in which the condensate is heated to substantially thetemperature of the fluid to be condensed.

- discharge port 6 which, as shown,

A further object is to produce a condenser in which improved meansareemployed for heating the condensate as it is withdrawn from the shdll ofthe condenser.

A further object is to produce a condenser, in which simple andeffective means are employed for subjecting the condensataleaving thecondenser to the heating action of the steam or' hot vapors.

' These and other objects are attained by means of a. condenserembodying the features herein described drawing accompanying and forminga hereof.

The drawing is a diagrannnatic sectional part view of a condenserembodying my invention.

The condenser illustrated includes a nest of tu'bes'2, which is inclosedwithin a shell 3, and through which cooling water is circulated in theusual manner. The shell is provided with the usual inlet port 4:, theusual air ofi'take port 5, and the usual condensate is located in thebottom of the shell.

In the usual forms of surface condensers the condensate flows directlyto a condensate or hot well 7 and is then withdrawn by. a condensatepump 8. In the apparatus illuse trated the condensate delivered throughthe port 6, first flows into and through a hydrostatic trap 16 and thendrops into the condensate or hot well 7. In dropping from the trap lOthecondensate is exposed to and heated by steam which in the illustratedembodiment of the invention is delivered to the hot well 7 through aconduit 12 which Specification of Letters Patent.

Application filed October 8, 1917. Serial No. 195,316.

Con-- densers, of which the following is a specrfiand illustrated in thePatented Jan. 27, 1920.

steam inlet of the condenser. The trap 10 prevents the steam from thehot well from entering the condenser through the port 6. It will, ofcourse, be understood that there will ordinarily be a slight pressuredrop between the inlet l and the hot well 7 which will be sufficient todraw steam through the conduit 12 into the hot well at such a rate as tothoroughly heat the condensate as it drops into the hot well.

As illustrated the trap 10 is so arranged that the condensate indropping from it enters the hot well in a subdivided state, andconsequently is readily heated to the temperature of the steam deliveredto the hot well. The interchange oi: heat between the steam entering thehot well and the cooler condensate will of .course occasion acondensation a few simple and inexpensive changes in the construction ofthe condenser. It will, of course, be understood that the steam from anysource may be delivered to the hot well,

but this heating steam is preferably with- ,drawn'from the steampassingto the cooling passages of the condenser.

While I have described and illustrated but one embodiment of myinvention, it will be apparent to those skilled in the art that va1i-ious changes, modifications, additions and omissions may be made inthe apparatus de-' scribed and illustrated without departing from thespirit and scope of the invention, as set forth by the appended claims.

WVhat I elaim is:

1. In a condenser, a shell having an inlet port formed therein, coolingelements inclosed by the shell, a hot well, a hydrostatic trapconnecting the hot well with the shell through which condensate isdrained to the hot well, and means for conducting fluids from the inletport to the hot well for heat ing the condensate discharged from thetrap.

2. A condenser having a steam inlet and a condensate outlet port, meansfor. bypassing steam around the condenser to the outlet port in order toheat condensate issuing from said port, and means including ahydrostatic trap for preventing steam bypassed around the oondea'serfrom entering the condenser through the outlet port.

3. condenser having arondensate outlet port in'the bottom thereof, a.hot Well communicating Withsaid port, means for delivering steam to thehot Well for heating the condensate delivered to the hot well from thecondenser, and means including a hydrostatic trap for preventing saidsteam from entering the condenser through the outlet ort.

4. In a. condenser, a shell having a steam inlet port and a condensateoutlet )ort, a 'nest of cooling elements located within the shell, a hotwell for collecting the condensate Withdrawnfrom the condenser, ahydrostati trap for delivering the condensate to the hot well in adivided state and for preventing vapors from passing from the hot eredfrom the condenser into the hot well adapted to maintain a substantiallyuniform sealing pressure regardless of the condensate supply, and meansfor subjecting the condensate issuing from the trap to the direct actionof steam within the hot Well.

In testimony whereof, I have hereunto subscribed my name this 6th day of()ctoher, 1917.

RAYMOND N. EHRHAR-T.

Witness:

(J. W. McGusa.

